公路施工場(chǎng)地?fù)P塵污染擴(kuò)散機(jī)理及抑塵措施研究
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文章編號(hào)：1674-6139（2025)06-0077-05
中圖分類號(hào)：X734文獻(xiàn)標(biāo)志碼：B
Research on Diffusion Mechanism and Dust Suppression Measures of Dust Pollution in Highway Construction Sites
Tang Longxing
(Zhenba County Rural Highway Development Center,Hanzhong 7236OO,China）
Abstract:Since thecurrentmethodcannotefectivelysuppressdust,thedifusionmechanismanddustsuppressionmeasuresof highwayconstructionsiteustpolutionbasedonCFDarestudied.UsingCFDfluiddnamicstosimulatefluidflow,theprocessofdust difusionissmulatedbysetingtheboundaryconditionsofcontiuousphaseflowfieldtocalculateReyoldsnumberandjudgefluidflow stateThedusttrbulencemodeldscriptionquationasconstructedtobtainthedustpolltiondifusioncoefcientandeflcttedust particledifusionabilityiteairTeselingvelocityofustparticesialulated,tustpolutiolevelsedvidedcodigto thedustmass concentration,andthedustsuppressionmeasuresare taken.Theexperimentshows that whenthe truck speed is 40km/h （20 and 50km/h ，the maximum concentration of PM2.5 can be inhibited by 155μg/m3 and 260μg/m3 respectively，and the maximum concentration of PM10 can be inhibited by 90μg/m3 and 55μg/m3 respectively，all of which belong to mild pollution and can effectively deal with dust pollution.
Key Words:highway construction；dust pollutionon the site；difusion mechanism；dust suppression measures；CFD
前言
公路施工是現(xiàn)代交通基礎(chǔ)設(shè)施建設(shè)中不可或缺的一環(huán)，然而過程中產(chǎn)生的揚(yáng)塵污染問題卻日益凸顯。（剩余7503字）